The period of heightened precipitation significantly impacts the Amazon River basin, resulting in substantial changes in water levels and inundation patterns. This annual phenomenon leads to the expansion of the river and its tributaries across the floodplain. An instance of this recurring event can be observed each year, typically between December and May in the southern Amazon basin, and between June and November in the northern parts.
This seasonal event is vital for the ecological health and biodiversity of the region. The flooding distributes nutrients across the landscape, supporting a rich array of aquatic and terrestrial life. Historically, local communities have adapted to this predictable cycle, utilizing the floodplains for agriculture and fisheries. It also plays a critical role in regulating regional climate patterns and carbon cycling.